Teen heartthrob Justin Bieber is known for making girls' hearts go pitter-pat, but did he cause a pain in photographer's chest after a scuffle Sunday?

The Los Angeles County Sheriff would like to question the 18-year old singer after a photographer called 9-1-1 yesterday complaining of pains after being allegedly roughed up by the Canadian superstar.

Sheriff's Lt. Robert Wiard told the Associated Press that the photographer and the teen tangled after the photographer tried to take pictures of Bieber and his girlfriend, Selena Gomez, after the pair walked out of a movie theater at a Calabasas mall.

Wiard said the photographer was taken to a hospital where he was treated and released. But Bieber, who recently purchased a $6.5 million home in Calabasas, left with Gomez before deputies arrived. They'd like to get his side of the story.

Bieber took to Twitter early Monday to tell his 22 million followers that he was "gonna focus on the important stuff. the music."

Witnesses are being asked to contact detectives at (818) 878-1808. Anonymous tipsters may contact Crime Stoppers at (800) 222-TIPS (8477).